Fictional characters, sure. Real people? That's crossing a line. I believe I own myself, and manipulating my face and voice to say what I did not and never would say is a misuse of my property. I can't fully justify that belief, but I would certainly be enraged beyond reason to see a representation of my principled father speaking against his values.
I agree. Now, who's going to be the one to step up to the plate and stop these rascals from running open-source code on their GPUs that allows for this kind of nonsense?
There are things society allows you to do in private, but not in public.